Home / 39,688.05-59,520.19-15,987.99

Finding the Fourth Proportional to 39,688.05, 59,520.19 and 15,987.99

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Solution

The fourth proportional to 39,688.05, 59,520.19 and 15,987.99 is: 23,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.05 : 59,520.19 = 15,987.99 : x
  2. Step 2: Convert to fraction form
    39,688.05/59,520.19 = 15,987.99/x
  3. Step 3: Cross multiply
    39,688.05x = 59,520.19 × 15,987.99
  4. Step 4: Simplify right side
    39,688.05x = 951,608,202.52
  5. Step 5: Solve for x
    x = 951,608,202.52/39,688.05
  6. Step 6: Final answer
    x = 23,977.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.